Definitely not for medical use -[ SoS ]-

Industrial needles, used with standard syringes for dispensing purposes. I use them for projects, including for a couple of water droplet photos I posted here in the past.

 

Besides not being sterile, the heavier needle shaft gauge (1.81mm, or 0.07"), a flat tip, and other details make these needles totally unfit for medical use. Even though handling these was a little unnerving at first, I've gotten used to it.

Done